EP 4317344 A1 20240207 - RADIATION-CURABLE ADHESIVE SHEET
Title (en)
RADIATION-CURABLE ADHESIVE SHEET
Title (de)
STRAHLUNGSHÄRTBARE KLEBEFOLIE
Title (fr)
FEUILLE ADHÉSIVE DURCISSABLE PAR RAYONNEMENT
Publication
Application
Priority
- JP 2021058809 A 20210330
- JP 2022014046 W 20220324
Abstract (en)
An object of the present invention is to provide a radiation curable pressure-sensitive adhesive sheet with excellent storage stability, which can suppress the progress of curing during storage and maintain excellent level difference absorbability and stress relaxation properties for a long time. A radiation curable pressure-sensitive adhesive sheet 1 of the present invention has a pressure-sensitive adhesive layer 10 that is cured by irradiation with radiation. The pressure-sensitive adhesive layer 10 contains a photopolymerization initiator 11a and a crosslinking agent 11b, and the curing by irradiation with radiation is curing by a reaction between the photopolymerization initiator 11a and the crosslinking agent 11b. In the radiation curable pressure-sensitive adhesive sheet 1 of the present invention, the pressure-sensitive adhesive layer 10 further contains a hindered amine light stabilizer 11c.
IPC 8 full level
C09J 11/06 (2006.01); C09J 7/30 (2018.01); C09J 201/00 (2006.01)
CPC (source: EP KR)
C08K 5/0025 (2013.01 - KR); C08K 5/17 (2013.01 - KR); C09J 7/30 (2018.01 - KR); C09J 7/385 (2018.01 - EP); C09J 11/06 (2013.01 - KR); C09J 201/00 (2013.01 - KR); C08K 5/005 (2013.01 - EP); C08K 5/3435 (2013.01 - EP); C09J 2203/318 (2013.01 - EP KR); C09J 2301/312 (2020.08 - KR); C09J 2301/408 (2020.08 - EP); C09J 2301/416 (2020.08 - KR); C09J 2433/00 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4317344 A1 20240207; CN 117157371 A 20231201; JP 2022155358 A 20221013; KR 20230163479 A 20231130; TW 202300614 A 20230101; WO 2022210276 A1 20221006
DOCDB simple family (application)
EP 22780490 A 20220324; CN 202280026194 A 20220324; JP 2021058809 A 20210330; JP 2022014046 W 20220324; KR 20237036694 A 20220324; TW 111111920 A 20220329